Consider an enzyme that decreases the activation energy of the catalyzed reaction by 12.37 kJ/mol at 25°C. Assuming that the Arrhenius factor A is unchanged by the catalysis, how many times larger is the rate constant for the catalyzed reaction compared to the rate constant for the uncatalyzed reaction? A. B. C. D. Keat/Kuncat 1.01 Kcat/kuncat = 4.99 Keat/kuncat= 68.0 Keat/Kuncat = 147 =

Chemistry for Engineering Students
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Author:Lawrence S. Brown, Tom Holme
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Chapter11: Chemical Kinetics
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20. Consider an enzyme that decreases the activation energy of the catalyzed reaction by
12.37 kJ/mol at 25°C. Assuming that the Arrhenius factor A is unchanged by the catalysis,
how many times larger is the rate constant for the catalyzed reaction compared to the rate
constant for the uncatalyzed reaction?
A.
B.
C.
D.
E.
Kcat/Kuncat 1.01
Kcat/Kuncat = 4.99
Kcat/kuncat = 68.0
Keat/kuncat 147
Keat/Kuncat 702
=
=
Transcribed Image Text:20. Consider an enzyme that decreases the activation energy of the catalyzed reaction by 12.37 kJ/mol at 25°C. Assuming that the Arrhenius factor A is unchanged by the catalysis, how many times larger is the rate constant for the catalyzed reaction compared to the rate constant for the uncatalyzed reaction? A. B. C. D. E. Kcat/Kuncat 1.01 Kcat/Kuncat = 4.99 Kcat/kuncat = 68.0 Keat/kuncat 147 Keat/Kuncat 702 = =
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